psychedelic — 1956, of drugs, suggested by H. Osmond in a letter to Aldous Huxley and used by Osmond in a scientific paper published the next year; from Gk. psykhe mind (see PSYCHE (Cf. psyche)) + deloun make visible, reveal, from delos visible, clear.… … Etymology dictionary

Psychedelic — Modern psychedelia:: For psychedelics, see psychedelic drug. The word psychedelic is an English term coined from the Greek words for soul, ψυχή ( psyche ), and manifest, δήλος ( delos ). A psychedelic experience is characterized by the perception … Wikipedia

psychedelic — [[t]sa͟ɪkəde̱lɪk[/t]] 1) ADJ GRADED: usu ADJ n Psychedelic means relating to drugs such as LSD which have a strong effect on your mind, often making you see things that are not there. Grof describes his research with psychedelic drugs and the… … English dictionary

psychedelic — 1. Pertaining to a rather imprecise category of drugs with mainly central nervous system action, and with effects said to be the expansion or heightening of consciousness, e.g., LSD, hashish, mescaline. 2. A hallucinogenic substance, visual … Medical dictionary